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(No Model.) 2 Sheets-Sheet 1.

T. C. OADWGAN.

URUSHING AND GRINDING MILL.

No. 457,146. Patente'd Aug. 4, 1891,

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(No Model.)

'T. 0. GADWGAN. Y GRUSHING AND GRINDING MILL.

N01457,146. Patented Aug.4,1891.

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UNITED STATES PATENT OFFICE.

THOMAS c. CADWGAN, OF SPRINGFIELD, OHIO, ASSIGNOR, BY MESNE ASSIGN- MENTS, TO THE 0. s. KELLY COMPANY, OF SAME PLACE.

CRUSHING AND GRINDING MILL.

SPECIFICATION forming part of Letters Patent No. 457,146, dated August 4, 1891. Application filed May 19, 1888. Serial No. 274,432. (No model.)

To all whom if may concern: veyer and carries the material to the grinding- Be it known that I, THOMAS C. OADWGAN, disks D D, also supported on main shaft C. a citizen of the United States, residing at In grinding fibrous materials, and epecially Springfield, in the county of Clark and State unhulled cotton-seed,difficultyis encountered of Ohio, have invented certain new and usein feeding the same equally to the crushing 55 ful Improvements in Crushing and Grinding and grinding mechanism because of the tend- Mills, of which the following is a specification. ency of the material to bridge over the hop- M y invention relates to crushing and grindper and stop the action thereon of the feeding ing mills; and it particularly relates to that and crushing rolls. To overcome this difficlass of mills adapted to crushing and grindculty, I provide my improved mill with vi- 6o ing ear-corn, cotton-seed, herbs, and similar brating sides E E, hinged to the hopperAin substances. connection with the crushing and feeding rolls The objects of my invention are to provide 13 B and adapted by the revolution of the said for feeding fibrous oradhesive substances and rolls to be forced inwardly and then gravitate 15 prevent the same from bridging over in the outwardly in the said hopper, producing an 65 hopper. alternate compression and relaxation of the The furtherobject of myinvention is topromaterial in the hopper, causing the same to vide a novel means for regulating the quanfall in a regular manner into the crushing tity of material fed to thegrinding-disks. and feeding rolls. These vibrating sides are The further object of myinvention is to propreferably made of sheet metal hinged at a a 70 videa mechanism of novel construction adaptto the sides of the hopperA and each provided ed to crush substances of different kinds and at its lower edge with projecting fingers a, varieties. A adapted to be engaged by projections'b on the I attain these objects by the mechanism crushing-rolls B B. The crushing-rolls BB 2 5 illustrated in the accompanying drawings, in receive their motion through a belt connec- 75 whichtion c, pinion c, spur-gear c and intermesh- Figure 1 is a perspective view ofacrushing ing gears c from the main shaft 0, and are and grinding mill embodying my invention. thus caused to revolve in opposite directions Figs. 2 and 3 arerespectivelylongitudinaland toward the center of the hopper A, as inditransverse sectional views of the same, the cated by the arrows in Fig. 3. It will be seen 80 feed-plate being, however, omitted from the that as the said crushing and feeding rolls construction shown in Fig. 2. Fig. lis a perare revolved the protuberancesbthereon,comspective viewin detail of the hopper and feeding in contact with the projecting fingers a, ing and crushing mechanism therein 0011- will cause an inward and outward movement tained. Fig. 5 is a detail viewin perspective of the sides or leaves E E. 8 of the feed-regulating plate and means for op- In grinding some kinds of materialfor inerating the same. Fig. 6 is a transverse secstance, shelled corn or other cereals-it betional view of the same. Fig. 7 is a detail comes necessary to provide means for reguview of a feed-slideoperating device. Fig. 8 lating the supply of material fed to the supis a partial bottom View of the feed-plate and plemental crusher O and grinding-disks D D. 90 its regulating-slide. Fig. 9 is a detail view of To accomplish this I provide a hinged feedthe feed-plate-supporting mechanism. plate F directly under the crushing and feed- Like parts are indicated by similar letters ing rolls B B and provide in one corner of of reference in the several views. said feed-plate an opening F, over which is In the said drawings,A represents the hopadapted to slide a supplemental plate or regu- 95 per in which the material to be crushed and lator F This supplemental plate or reguground is placed. B B are intergeared crushlator F is provided with slotted ways orguides ing-rolls located at the bottom of the saidhopcl and suitable fastening-bolts d, by which it per and above a secondary crusher C on the is secured to the feed-plate F and at the same main shaft 0', which crusheralso acts asacontime permitted to slide thereon. It is also I00 provided on one side with a projecting finger (1 adapted to be engaged by abifurcated arm 61 on the inner end of a small shaft (1 which projects through the walls of the inclosing casing and is provided on the outer end with a hand-wheel d When the hinged plate F, therefore, is in the position shown in Figs. 4 and 5,the openingF maybe readily regulated to suit the quantity of corn to be fed through the same by turning the wheel 01 As above stated, the plate F is hinged to the sides of the casing, preferably at the points a e, as shown in Figs. 5 and 6. Extending down- Wardly and backwardly from the under side of said plate is a curved arm 6, formed on the arc of a circle from the axis of the hinge e c. This arm is provided with notches 6 adapted to be engaged by a suitable latch or fastening 6 located on the outside of the outer casing, which incloses the feeding-chamber. feeding small grain, the plate is turned to the position shown in Figs. 5 and 6 and held therein by the latch e Fig. 9, engaging with the outer notch e in the said arm 6. In feeding earcorn or larger material the latch e is withdrawn from engagement with the arm 6 and the plate F is allowed to drop down parallel with the side of the chamber, and is held in this position by the latch 6 which engages with the inner notch e in said arm, thus leaving the passage from the feed-chamber to the supplemental crusherfree and unencumbered.

I have shown two crushing or feeding rolls in the drawings; but one only may be used, if desired. connection with the conveyer and crusher in the chamber below, serve to reduce material of various kinds-such as ear-corn, cottonseed cake, bones, or other substances-to a suitable size for grinding before the same is carried to the grinding-disks.

Having thus described my invention, I claim- When.

The feeding or crushing rolls, in

1. The combination, in a crushing and grinding mill, substantially as described, with the intergeared feeding and crushing rolls having projections 19 adapted to turn in opposite directions in the feeding-hopper, of the vibrating sides hinged in said hopperand having fingers a adapted to ,be engaged by the projections of said feeding-rolls to produce a vibratory movement thereof, substantially as specified.

2. The combination, with the supplemental crusher and grinding-disks on the main shaft, of the intergeared feeding and crushing rolls above said crusher and connected thereto, projections on said crushing-rolls, and hinged vibra ting sides in said hopper having projecting fingers adapted to engage with said projections of the crushing and feeding rolls, substantially as set forth.

3. The combination, with the hinged plate F, of the supplemental slide or regulator F secured to said hinged plate, the projecting finger on said supplemental slide, the bifurcated arm adapted to engage said finger, and a hand-wheel provided with a journal extending through the outer casing on said arm,substantially as specified.

4. The combination of the hinged feedingplate having the curved' and notched arm,

a fastening device adapted to hold the same in different positions of adjustment, the supplemental slide on said feeding-plate, the proj ectin g finger onsaid slide, the bifurcated arm adapted to engage said finger, and the handwheel connected to said arm and extending through said casing, substantially as set forth. In testimony whereof I have hereunto set my hand this 16th day of May, A. D. 1888.

THOMAS C. CADVGAN.

WVitnesses:

PAUL A. STABY, CHASE STEWART. 

